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Diffstat (limited to 'src/mame/drivers/electron.c')
-rw-r--r--src/mame/drivers/electron.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/mame/drivers/electron.c b/src/mame/drivers/electron.c
index 9dbc5468a6f..1009dc504a3 100644
--- a/src/mame/drivers/electron.c
+++ b/src/mame/drivers/electron.c
@@ -1,9 +1,9 @@
// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
/******************************************************************************
- Acorn Electron driver
+ Acorn Electron driver
By Wilbert Pol
-
+
Hardware Overview
-----------------
The Acorn Electron is a budget version of the BBC Micro home computer
@@ -18,7 +18,7 @@ Internal ports for cassette storage, RGB/CVBS monitors and TV output
Various expansions can be added via the rear expansion port
PCB Layout
----------- |-------------------|
+---------- |-------------------|
|--------| EXPANSION PORT |
|-----|---------------------| |---||---------|
|MOD | SPKR 16MHz LS169 18VAC|| []18VAC INPUT
@@ -33,7 +33,7 @@ PCB Layout
Notes: (all IC's shown. Only 16 ICs are used)
6502 - 6502 CPU, clock input 2.000MHz [16/8]
ULA - Custom logic chip 12CO21, also containing most of the BBC Micro circuitry
- Early PCB revisions used a PLCC68 chip in a socket. Later revisions used a
+ Early PCB revisions used a PLCC68 chip in a socket. Later revisions used a
PGA68 chip soldered directly into the motherboard
4164 - 4164 64k x4-bit DRAM (4 chips for 32kbytes total)
ROM - Hitachi HN613256 32k x8-bit MASK ROM containing OS & BASIC
@@ -45,10 +45,10 @@ Notes: (all IC's shown. Only 16 ICs are used)
PWR - 3-pin power input from internal power supply
KBD_CONN - 22-pin keyboard connector
SPKR - 2-pin internal speaker connector
-
+
******************************************************************************
Emulation notes:
-
+
I don't have a real system to verify the behaviour of the emulation. The things
that can be done through BASIC programs seem to behave properly (most of the time :).